Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by sleepdrifter

  1. S

    Tapped axial holes on tube

    Radially sealed with an o-ring that sits inside a groove on the orange component. I didn't include the detail in my power point engineered representation of the orange component.
  2. S

    Tapped axial holes on tube

    Thanks for this.. it's a lot more digestible than the textbook. Appreciate that.. I think this is my best option without overcomplicating things. Thanks again everyone who spent some time responding to this. My final question: is calculating thread tearout/material failure due to not enough...
  3. S

    Tapped axial holes on tube

    I'm unable to modify the orange part at all. I'm handed a part from a customer and have to create a fixture to seal and pressurize it to validate the integrity of some bonded seals/components not shown in my simplified figures.
  4. S

    Tapped axial holes on tube

    The lip on the OD of the orange part is only 0.15" tall. My current concession it to clear that lip vertically then expand out the OD of my part to allow for a much larger material margin between the OD and my tapped hole. I would have a clearance hole in the area with little material on the OD...
  5. S

    Tapped axial holes on tube

    Thank you all for the responses. I'm pretty limited on my design options due to customer constraints. I can't make any changes to the orange part; I have to work within the constraints of that component. My primary concern here is the OD area goutam pointed out tearing out. I am using a 1/2"-13...
  6. S

    Tapped axial holes on tube

    Sure, attached is a section view figure of the overall assembly. My part will be fastened to plate with 1/2" clearance holes and a flange face with lip features that define my ID and OD. Screws shown in blue, flange plate in orange and my part grey. The plate will have an oring to seal off the...
  7. S

    Tapped axial holes on tube

    Attached is a sketch of what I'm working with. Locked into these dimensions and this overall design-- not looking for advice on the design itself. Primarily looking for how I can determine if I'm treading into dangerous territory of material failure based on material properties, stress on the...
  8. S

    Tapped axial holes on tube

    I have to design a fixture that is a roughly a 23" ID tube w/ a 1" WT that will have a tapped bolt pattern around the flat base portion of the tube. I've been trying to find how I can calculate what kind of stress would cause the part to fail. My biggest concern is that I'm aligning with 1/2"...
  9. S

    Bolts in Shear on Circumferential Bolt Pattern

    Thank you for helping me validate that original question. I am just looking for enough validation in simple calcs to ensure I don't need to dig further into this. The bolts can be consumed after the test for all I care. Orange component is a titanium alloy so it's plenty strong and my fixture...
  10. S

    Bolts in Shear on Circumferential Bolt Pattern

    I agree with everything you stated, and I don't have to use the provided part features, but this is the only feature on this entire part for fastening. I could develop a fixture that clamps onto the customers part, but then I risk damaging/marring it up. The customer part is a titanium alloy...
  11. S

    Bolts in Shear on Circumferential Bolt Pattern

    I pressure test customer components in the aerospace industry. This test is just to validate a seal (not related to this interface I'm showing). The actual usage of this circumferential bolt pattern is unknown to me, and the pressurization of this part doesn't depict the real use case of this...
  12. S

    Bolts in Shear on Circumferential Bolt Pattern

    I didn't include all the details of the design because it didn't really seem pertinent to my question. There's going to be an o-ring sealing the two parts. I'm forced in using the orange part with a circumferential bolt pattern and it is not my design. I'm only here asking this question because...
  13. S

    Bolts in Shear on Circumferential Bolt Pattern

    Yea I'm seeing that now.. I'm not using a typical friction joint here and realize the bolts are just being put in bending. And I agree that the shims really aren't going to be doing much for me except reducing any play that may be present. Thanks for the advice (y) EDIT: I've attached a rough...
  14. S

    Bolts in Shear on Circumferential Bolt Pattern

    For fastener shear strength I'm using Grade 8 bolts, so 60% of it's tensile strength which is 90ksi. Not sure how to go about the part bearing strengths. From what I understand, I would need to consider failure of the bolt and failure of the plates. For failure of the bolt I can use a simple...
  15. S

    Bolts in Shear on Circumferential Bolt Pattern

    I'm designing a part that will attach to a circumferential bolt pattern, with threaded holes on the mating component. In my attached picture below, the blue components is my part that will have thru holes, the orange component is the mating component with threaded holes, and the grey component...

Part and Inventory Search